Editing Quantum Digital Signature (section)

==Functionality==
Digital Signatures (QDS) allow the exchange of classical messages from sender to multiple recipients, with a guarantee that the signature has come from a genuine sender. Additionally, it comes with the properties of [[Quantum Digital Signature#Properties|transferability]], [[Quantum Digital Signature#Properties|non-repudiation]] and [[Quantum Digital Signature#Properties|unforgeability]]. In contrast, classical digital signatures rely on authentication (taken as an assumption for some QDS protocols) i.e. the message has come from the claimed party; integrity i.e. the message has not been altered (if authentication is confirmed, this property is unforgeability) and non-repudiation (same as QDS). These properties distinguish quantum digital signatures from [[Authentication of Quantum Messages|quantum authentication]]. Quantum messages can be authenticated but not signed [[Quantum Digital Signature#References|(1), (2)]]. Note that QDS schemes sign classical messages and not quantum messages. <br/>

'''Tags:'''  [[:Category: Multi Party Protocols|Multi Party (three)]],  [[:Category: Quantum Enhanced Classical Functionality|Quantum Enhanced Classical Functionality]],  [[:Category: Specific Task|Specific Task]]
[[Category: Multi Party Protocols]]  [[Category: Quantum Enhanced Classical Functionality]]  [[Category:Specific Task]]